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From: Graham Cobb <>
Subject: Re: Used disk size of a received subvolume?
Date: Sat, 18 May 2019 00:15:25 +0100
Message-ID: <> (raw)
In-Reply-To: <>

On 17/05/2019 17:39, Steven Davies wrote:
> On 17/05/2019 16:28, Graham Cobb wrote:
>> That is why I created my "extents-list" stuff. This is a horrible hack
>> (one day I will rewrite it using the python library) which lets me
>> answer questions like: "how much space am I wasting by keeping
>> historical snapshots", "how much data is being shared between two
>> subvolumes", "how much of the data in my latest snapshot is unique to
>> that snapshot" and "how much space would I actually free up if I removed
>> (just) these particular directories". None of which can be answered from
>> the existing btrfs command line tools (unless I have missed something).
> I have my own horrible hack to do something like this; if you ever get
> around to implementing it in Python could you share the code?

Sure. The current hack (using shell and command line tools) is at If the python version ever
materialises I expect it will end up there as well.

  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-16 14:54 Axel Burri
2019-05-16 17:09 ` Remi Gauvin
2019-05-17 14:14   ` Axel Burri
2019-05-17 16:22     ` Remi Gauvin
2019-05-16 17:12 ` Hugo Mills
2019-05-17 13:57   ` Axel Burri
2019-05-17 15:28     ` Graham Cobb
2019-05-17 16:39       ` Steven Davies
2019-05-17 23:15         ` Graham Cobb [this message]
2019-05-23 16:06       ` Axel Burri

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